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-rw-r--r--os/ports/GCC/ARMCMx/chcore.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/os/ports/GCC/ARMCMx/chcore.h b/os/ports/GCC/ARMCMx/chcore.h
index e318eec57..57183e162 100644
--- a/os/ports/GCC/ARMCMx/chcore.h
+++ b/os/ports/GCC/ARMCMx/chcore.h
@@ -287,10 +287,11 @@ struct context {
* This value can be zero on those architecture where there is a
* separate interrupt stack and the stack space between @p intctx and
* @p extctx is known to be zero.
- * @note This port requires no extra stack space for interrupt handling.
+ * @note This port requires some extra stack space for interrupt handling
+ * representing the frame of the function @p chSchDoRescheduleI().
*/
#ifndef INT_REQUIRED_STACK
-#define INT_REQUIRED_STACK 0
+#define INT_REQUIRED_STACK 8
#endif
/**